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Cross sections of bilayer with 20.3% cholesterol at 100 ns. DPPC grid elements have been colored red, cholesterol is green, and water blue. The remaining area, i.e., the free area, is white. The panels correspond to slices at different distances z from the bilayer center: (a) bilayer center, (b) z ∼ 1 nm, (c) z ∼ 1.7 nm, (d) z ∼ 2 nm.
